Water is leaking into my fridge from defrost.

Most times this is a plugged defrost drain system. The defrost heater in the freezer section melts the frost and changes it to water, this water is suppose to flow down a drain system. If this drain system is restricted or plugged the water will leak inside the refrigerator. The drain system starts in the freezer section with a tray built under the evaporator coil. The water is funneled through a small hose into a cup in the top middle of the fresh food section ( not on all models, but this is the most common way ), from there, the water is directed out the back wall to a drain hose that runs down the back of the refrigerator into a condensing tray. The heat created under the fridge makes the water evaporate and disappear. Some of the cups ( in the top back of the fresh food section ) can be removed for cleaning. A turkey baster can be used to help clean out the drain system. Fill the baster with hot water and "blast" it into the drain hose to help flush it out. A piece of wire or pipe cleaner can also be pushed into the drain hoses to help clean then out. On a S x S style of fridge the drain system is in the bottom back of the freezer section and often you will have to remove the evaporator cover to access the drain hole. You can clean this out in the same manner as previously mentioned, but because of the water leaking into the freezer instead of the fresh food section you will have to remove the ice build up to clean out the drain system.


If in case the water is leaking on the floor then:--
There are several things to check for. The condensing defrost tray under the fridge can crack or develop a hole and leak onto the floor. A door gasket not closing properly may cause sweating and leak onto the floor. If your fridge has developed a frost free failure problem, often the frost will travel down the suction line at the back of the fridge and drip water on the floor. The heat exchanger tubing can separate and also sweat and drip on the floor. Ice maker and chilled water fill lines can crack and leak as well, this is fairly common with the plastic lines as they can dry out and crack.
Unplug the unit from main power outlet and empty whole unit and keep both the doors open and then connect the power after 24 hours and recheck.This procedure is called manual defrost reset.If this helps then its OK,but if this procedure not helping then its the faulty defrost unit and it needs to be replaced.
You can get required parts from www.repairclinic.com
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The model is not mentioned and whether it is frost free. Normally the frosting water is collected after the auto defrost on a frost free frdige and so there is no question of frost condesation to water.Also the water is collected into a drain through a drain pipe from the evaporator.So if there is a leak it will not flow into the fridge.
In your case the fros my be formed on the exposed freezer coils and the collection is overflowing into the fridge.
If you mentioned leaking please specify the leak from which part of the fridge obviously from the freezer so is there by any chance frosting due to leak in the door gaskets?